Thanks for the link to the pics. Somewhat shocked those trailers are what PG&E accepts as state-of-the-art, especially for a remote listening solution. Looks like 99% solar and 1% discone on a mast into a raspberry pi streaming audio, and either a cell or WISP uplink. But PG&E Comms are run by PG&E IT, so that makes sense. IT/Comms folks who truly cross that bridge and "get it" are rare.